Improvement in churns



:To all whom it huty concrn: i

the several figures.A

tamta ;starczmwt ci-1111x132..

JONATH'AN L; DEVOL, or. PARKERSBURG, WEST VIRGINIA.

' mam Patent Na. 102,509, amd 'Mag 8,1870; meamezz April 29', 1870.

l mnovnmn'r m oHURNs.

The :schcdula refened tom thenmatter; Patent and making part of the samo.

portion of the rods orstaves to which theyfare at-i tached..

' Figure 4 is a plan -view of the dashers,`showing,.

also, the manner. of kceping the d'ashers in position. with reference to'each other.l Corrospondingletters denote eorri'sponding parts'in Thisjntention relates to that class ofchurns which have dashers attached to rods moving Vertical'ly within them, and

lt consists in the 3 combination 'and arrangement of its parts, as will he more fully dcscrlbed .hei'einatteix To enable those'skilled, in the art tovmak and use my inventi'on, I will proceed to describe its construction and operation.

A, iu the drawing represents a rcssel for containing the"cream` or milk to be ehurned, and which may be of any dimensiousrequired, and may be made of Wood, or any other suitable material. .v

B iltepresents a cover, which rests' upon the top o yessel A, and forms avtight joint therewith, and-thus prevents the escape ofany cream or milk at that point 'when the chnrn is in operation.

' O O rcprescnts a 'fi'ame-work of metal, or of wood, which rests upon, and is secured to, the cover B, from which it rise's for a dist-ance suificient to nable it to.v receive i'nlts upper' end, or 'ends, acrank-sliaft,-and

leave room between it'aud the`cover fbrtlie-operation of .the connecting-rods, asA shown infig. 2.

D reprcsentsa gear-wheel, which is pi'voted to one side of' frame-0 at sucha vpoint as to' cause the cogs upon its periphery to mesh into and drive the-pinion E, i'hich is' attached to the outer vend of the cmnksha.v

This wheel is to be larger in ,diameter than the pinionwhich it drives, it beng,say, three 01' four times its diameter, the object being to give a rapid 'motion to the dashers by a' 'slow motion ofvthe wheel D.

F represents'a cran'k-shaft which has its bearings in boxes form'cd in or secjured to the upper cnds ,of

the frame 0, between which' pointsit has forlnedfin it two throws or crahks, which are opposite to 'each other, so that, as one of theY dashers is being raised, the other' shall be forced dow'nward at the same time,

' and thus cause a violent agitation of the' contents -of the churn.

. G' G' represent connecting-rods, which connect the crank-shaft with crauk-pins in the upper euds of the dasher-rods, as shown in fig, 2.

H- H' represent two semicircular rods which pass down through an apertnrein the cover B, and in which they fit siugly, so as to preve'nt thelescape of the milk. .The upper'ends of these rods are provided with a crack-pin to'which the connecting-rods are attachd 'for giving motion to them.

To the lower 'ends of these rods aresecnred semicir'cnlar perforated disks, K K', while at'a suitable 'distance above such disks there are attached two other seniicircnlar disk's, I I", one, to each of the rods, as in the formercase.` v

AThese last named disks are in the form of serews, and sustain about the same relation to their rodsthat a propeller-wheel does to its shaft. f

-The ofl'ice of these screw disks isto receive against\ their nndersnrtaces the cream .or mili; which passesnp through the apertures in the loweron es,' and thns,

in consequence ofthe outward'direction which will be giien to it, to cause it to com'ein contact with the sides of the vessel with great violence, and thus break up the little globules contained therein, I

- By reference. to fig. 'f'of the dmwings it will befseen that-the flattened inner surface et'ithe rod H'has -a groove formed iniit, and that 'the rod H has, npon'lits corresponding face, a projection which fits into said groove, thejobject being to cause said rods to form guides' for each other', and thns prevcnt the lower 'euds thereof fi'om'bec'oming beut by use. I

Having t'hnsdescribed,myjnvention, What I claim, and desire'to secure by Letters ;Patf

ent',isi i 1,. The combination of the' screw-formed perforated -dashers IV I', and the flat perforated dashers K. K',v

arranged tooperate .substantially as and for the 'pmpose set forth.

'2.' The semicircular rods, \vhen their lowerends are provided with a tongue and groove, s ubstantiallyasI and for'the purpose set forth, i

3. The combination of he screw disks' I I'and the flattened rods H H', .substantially as 'shown and d e-` scribed.

` 4. Arranging withina churn two dasher-rods, having one flat surface, and upon whichvthere are securcd two semicir'cular dashers, one of a screw form andthe other flat,-the arrangemeut being such that -the two In testimony whereof have signed my' name to this specification iin the presence of two subscribing witnesses.

` J. L. DEVOL.

Witnesses:

' GnonexaV Looms,

W. S. Devon.

for the pnrpose set 

